/* ============================================
   SKYBORNE: The Shattered Kingdoms — Styles
   Premium dark theme with glassmorphism
   ============================================ */

/* --- Reset & Base --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --font-display: 'Orbitron', monospace;
    --font-body: 'Inter', sans-serif;
    --bg-dark: #0a0a14;
    --bg-glass: rgba(15, 15, 30, 0.85);
    --bg-glass-light: rgba(30, 30, 60, 0.6);
    --border-glass: rgba(120, 120, 200, 0.2);
    --accent-primary: #a78bfa;
    --accent-secondary: #38bdf8;
    --accent-gold: #facc15;
    --accent-danger: #ef4444;
    --accent-success: #4ade80;
    --text-primary: #f0f0ff;
    --text-secondary: rgba(200, 200, 240, 0.7);
    --glow-primary: 0 0 20px rgba(167, 139, 250, 0.4);
    --glow-gold: 0 0 20px rgba(250, 204, 21, 0.4);
}

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--bg-dark);
    font-family: var(--font-body);
    color: var(--text-primary);
    -webkit-user-select: none;
    user-select: none;
    touch-action: none;
}

#game-container {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
}

#game-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

/* --- Screens (shared) --- */
.screen {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* --- Loading Screen --- */
#loading-screen {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0a14 0%, #1a1040 50%, #0a0a14 100%);
    z-index: 100;
    transition: opacity 0.8s ease;
}

#loading-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

#loading-content {
    text-align: center;
}

#loading-logo {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary), var(--accent-gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.15em;
    animation: pulseGlow 2s ease-in-out infinite;
}

#loading-subtitle {
    font-family: var(--font-display);
    font-size: clamp(0.6rem, 2vw, 1rem);
    color: var(--text-secondary);
    letter-spacing: 0.5em;
    margin-top: 0.5rem;
}

#loading-bar-container {
    width: clamp(200px, 50vw, 400px);
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin: 2rem auto 1rem;
    overflow: hidden;
}

#loading-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
    transition: width 0.3s ease;
}

#loading-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* --- Main Menu --- */
#main-menu {
    background: radial-gradient(ellipse at center, rgba(30, 20, 60, 0.9) 0%, rgba(10, 10, 20, 0.95) 100%);
}

#menu-content {
    text-align: center;
    z-index: 2;
}

.title-main {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 900;
    background: linear-gradient(135deg, #c084fc, #38bdf8, #facc15);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.1em;
    text-shadow: none;
    filter: drop-shadow(0 0 30px rgba(167, 139, 250, 0.3));
    animation: titleFloat 4s ease-in-out infinite;
}

.title-sub {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(0.7rem, 2.5vw, 1.2rem);
    color: var(--text-secondary);
    letter-spacing: 0.6em;
    margin-top: 0.5rem;
}

#menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 3rem;
    align-items: center;
}

.menu-btn {
    font-family: var(--font-display);
    font-size: clamp(0.75rem, 2vw, 1rem);
    font-weight: 700;
    padding: 0.9rem 2.5rem;
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    background: var(--bg-glass);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    min-width: 260px;
    letter-spacing: 0.08em;
    position: relative;
    overflow: hidden;
}

.menu-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.1), rgba(56, 189, 248, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.menu-btn:hover,
.menu-btn:active {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

.menu-btn:hover::before {
    opacity: 1;
}

.menu-btn.primary {
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.3), rgba(56, 189, 248, 0.2));
    border-color: var(--accent-primary);
    box-shadow: var(--glow-primary);
}

.btn-icon {
    margin-right: 0.5rem;
}

#menu-footer {
    margin-top: 3rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

/* --- Level Select --- */
#level-select {
    background: radial-gradient(ellipse at center, rgba(20, 15, 40, 0.95) 0%, rgba(10, 10, 20, 0.98) 100%);
}

#level-select-content {
    text-align: center;
    max-width: 900px;
    width: 90%;
}

#level-select-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: 2rem;
    letter-spacing: 0.1em;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

#level-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1.2rem;
    margin-bottom: 2rem;
}

.level-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--border-glass);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    transition: all 0.4s ease;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.level-card:hover:not(.locked) {
    transform: translateY(-6px) scale(1.02);
    border-color: var(--accent-primary);
    box-shadow: var(--glow-primary);
}

.level-card.locked {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(0.5);
}

.level-card-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 20%, var(--level-color, #a78bfa));
    opacity: 0.15;
    transition: opacity 0.3s;
}

.level-card:hover:not(.locked) .level-card-bg {
    opacity: 0.25;
}

.level-card-content {
    position: relative;
    padding: 1.2rem;
    z-index: 1;
}

.level-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    opacity: 0.3;
    position: absolute;
    top: 12px;
    right: 16px;
}

.level-name {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 0.3rem;
}

.level-desc {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-bottom: 0.6rem;
}

.level-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
}

.level-stars {
    color: var(--accent-gold);
}

.level-lock {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2;
}

.level-lock.hidden {
    display: none;
}

/* --- Settings --- */
#settings-screen {
    background: radial-gradient(ellipse at center, rgba(20, 15, 40, 0.95) 0%, rgba(10, 10, 20, 0.98) 100%);
}

#settings-content {
    text-align: center;
    max-width: 500px;
    width: 90%;
}

#settings-content h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: 2rem;
    letter-spacing: 0.1em;
}

.setting-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    margin-bottom: 0.8rem;
    background: var(--bg-glass);
    border-radius: 12px;
    border: 1px solid var(--border-glass);
}

.setting-row label {
    font-size: 0.9rem;
    font-weight: 600;
}

.setting-row input[type="range"] {
    width: 120px;
    accent-color: var(--accent-primary);
}

.setting-row select {
    background: rgba(30, 30, 60, 0.8);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    padding: 0.4rem 0.8rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
}

/* --- HUD --- */
#hud {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 5;
    transition: opacity 0.3s;
}

#hud.hidden {
    opacity: 0;
    visibility: hidden;
}

#hud>* {
    pointer-events: auto;
}

#hud-top {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
}

#hud-health {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#health-icon {
    font-size: 1.3rem;
}

#health-bar-bg {
    width: clamp(100px, 20vw, 200px);
    height: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

#health-bar {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-danger), #f97316);
    border-radius: 6px;
    transition: width 0.4s ease;
}

#health-text {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    min-width: 30px;
}

#hud-level-name {
    font-family: var(--font-display);
    font-size: clamp(0.7rem, 1.5vw, 1rem);
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-secondary);
}

#hud-crystals {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
}

#crystal-icon {
    font-size: 1.4rem;
}

#hud-bottom {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-display);
    font-size: 0.85rem;
    background: var(--bg-glass);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(10px);
}

#hud-minimap {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--border-glass);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

#minimap-canvas {
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

#btn-pause {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    color: var(--text-primary);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

#btn-pause:hover {
    border-color: var(--accent-primary);
}

/* --- Pause Menu --- */
#pause-menu {
    background: rgba(5, 5, 15, 0.85);
    backdrop-filter: blur(15px);
}

#pause-content {
    text-align: center;
}

#pause-content h2 {
    font-family: var(--font-display);
    font-size: 3rem;
    letter-spacing: 0.2em;
    margin-bottom: 2rem;
    color: var(--accent-primary);
}

#pause-content .menu-btn {
    margin-bottom: 0.8rem;
    display: block;
}

/* --- Level Complete --- */
#level-complete {
    background: radial-gradient(ellipse at center, rgba(20, 40, 20, 0.9) 0%, rgba(5, 5, 15, 0.95) 100%);
    backdrop-filter: blur(10px);
}

#complete-content {
    text-align: center;
    max-width: 450px;
    width: 90%;
}

#complete-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    margin-bottom: 2rem;
    color: var(--accent-gold);
    animation: titleFloat 3s ease-in-out infinite;
}

#complete-stats {
    background: var(--bg-glass);
    border-radius: 16px;
    border: 1px solid var(--border-glass);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 1rem;
}

.stat-row:last-child {
    border-bottom: none;
}

.stat-row span:last-child {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--accent-gold);
}

#complete-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    align-items: center;
}

/* --- Game Over --- */
#game-over {
    background: radial-gradient(ellipse at center, rgba(40, 10, 10, 0.9) 0%, rgba(5, 5, 15, 0.95) 100%);
    backdrop-filter: blur(10px);
}

#gameover-content {
    text-align: center;
}

#gameover-content h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 6vw, 3.5rem);
    color: var(--accent-danger);
    margin-bottom: 1rem;
    animation: pulseGlow 1.5s ease-in-out infinite;
}

#gameover-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

#gameover-content .menu-btn {
    margin-bottom: 0.8rem;
}

/* --- Touch Controls --- */
#touch-controls {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 6;
}

#touch-controls.hidden {
    display: none;
}

#joystick-zone {
    position: absolute;
    bottom: 30px;
    left: 30px;
    width: 140px;
    height: 140px;
    pointer-events: auto;
}

#joystick-base {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 2px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

#joystick-knob {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.6), rgba(167, 139, 250, 0.2));
    border: 2px solid rgba(167, 139, 250, 0.4);
    position: absolute;
    transition: none;
}

#touch-buttons {
    position: absolute;
    bottom: 30px;
    right: 30px;
    display: flex;
    gap: 15px;
    pointer-events: auto;
}

.touch-btn {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
    transition: all 0.15s;
}

.touch-btn:active {
    background: rgba(167, 139, 250, 0.3);
    border-color: var(--accent-primary);
    transform: scale(0.92);
}

#btn-touch-jump {
    background: rgba(56, 189, 248, 0.15);
    border-color: rgba(56, 189, 248, 0.3);
}

#btn-touch-attack {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
}

/* --- Level Intro --- */
#level-intro {
    background: rgba(0, 0, 0, 0.85);
    z-index: 20;
}

#intro-content {
    text-align: center;
}

#intro-number {
    font-family: var(--font-display);
    font-size: clamp(1rem, 3vw, 1.5rem);
    letter-spacing: 0.5em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    animation: slideInDown 0.8s ease-out;
}

#intro-name {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    letter-spacing: 0.1em;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: scaleIn 1s ease-out;
}

#intro-desc {
    margin-top: 1rem;
    font-size: clamp(0.8rem, 2vw, 1.1rem);
    color: var(--text-secondary);
    max-width: 500px;
    line-height: 1.6;
    animation: fadeInUp 1.2s ease-out;
}

/* --- Animations --- */
@keyframes pulseGlow {

    0%,
    100% {
        filter: drop-shadow(0 0 20px rgba(167, 139, 250, 0.3));
    }

    50% {
        filter: drop-shadow(0 0 40px rgba(167, 139, 250, 0.6));
    }
}

@keyframes titleFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

@keyframes slideInDown {
    from {
        transform: translateY(-40px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0.5);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes rotateFloat {
    from {
        transform: rotateY(0deg);
    }

    to {
        transform: rotateY(360deg);
    }
}

/* --- Responsive --- */
@media (max-width: 768px) {
    #hud-minimap {
        width: 120px;
        height: 120px;
        bottom: 90px;
        right: 10px;
    }

    #hud-top {
        padding: 0.6rem 0.8rem;
    }

    #health-bar-bg {
        width: 80px;
    }

    #hud-bottom {
        bottom: 80px;
        font-size: 0.7rem;
        padding: 0.4rem 1rem;
    }

    #btn-pause {
        top: 0.5rem;
        right: 50%;
        transform: translateX(50%);
    }

    .level-card {
        min-height: 150px;
    }

    #level-grid {
        grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
        gap: 0.8rem;
    }

    .setting-row {
        padding: 0.7rem 1rem;
    }

    .menu-btn {
        min-width: 220px;
        padding: 0.7rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .title-main {
        font-size: 2.5rem;
    }

    #level-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    #hud-level-name {
        display: none;
    }

    #hud-minimap {
        width: 90px;
        height: 90px;
        bottom: 100px;
    }
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 3px;
}